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Is 900w overkill?

post #1 of 12
Thread Starter 
Just wondering for rig is 900w over kill?

Gigabyte say running these card's in SLI I need a min. of 900w, but that seems very high, I was thinking maybe a good 80+ Silver or gold PSU should do the job
post #2 of 12
Yes 900W is more than you need.. 750/800W is plenty for your 570 SLI config.
post #3 of 12
Thread Starter 
post #4 of 12
Quote:
Originally Posted by ginger_nuts View Post
That unit would be enough , and future proof for a really long time .


I got my PSU 2 years ago , and will use it as long as it is enough/working .
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Blue Bridge
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Mobile Fortress
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Crucial BX100 250 Western Digital Caviar Black Coolermaster Hyper 212 EVO Windows 10 Pro X64 / OpenSUSE 13,2 
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post #5 of 12
Quote:
Originally Posted by ginger_nuts View Post
Get the Strider Plus 750, is plenty and offers far better value
post #6 of 12
Quote:
Originally Posted by Unoriginal Sin View Post

Get the Strider Plus 750, is plenty and offers far better value;)

Yes, that power supply is good enough.
post #7 of 12
To answer your question, yes it is overkill even for GTX580SLI.

For GTX570SLI 750W is plenty but I would go for a 850W unit in case if you decided to go for more powerful parts in the future.
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My PC
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Aorus X7 DT v7
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CPUMotherboardGraphicsGraphics
Intel Core i7 5820K ASUS X99 Deluxe NVIDIA MSI GTX1080 EK X NVIDIA MSI GTX1080 EK X 
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EK ASUS X99 Monoblock 2x EK XE480 Radiators Swiftech MCP35X (Dual DDC) Pump EK X3 250 Reservoir 
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Pioneer S-RS77TB Speakers Pioneer S-RS3SW Subwoofer Logitech G35 
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Intel Core i7 7820HK Aorus HM175 NVIDIA GTX 1080 Notebook 32GB Kingston Hyper X DDR4 2400MHz 
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post #8 of 12
I am running my HD6870s in crossfire on a Corsair TX650 and it is a bit warm and consequently a little noisy but is stable. It is probably getting close to (or at) the maximum capacity of the unit, so for overclocking my GPUs I intend on replacing it with a Silverstone Strider Plus 850w.

Wattage is not as important as amps, but any top brand PSU at 750w or 850w is going to have plenty. I don't really understand why people with less components than myself are buying 1000 or even 1200 watt power supplies, seems like money better spent elsewhere. Besides, if you buy a 1000w Gold rated PSU and its only running at say 50% capacity because you don't have enough equipment, it won't run at the rated efficiency of Gold, which kind of defeats the purpose. I would suggest the 850w Strider Gold or Plus you have linked to above, you can't really get a better power supply for the money and it is as good as more expensive units from Corsair and Enermax (based on AU pricing).
post #9 of 12
Thread Starter 
Judging what is here there is no need to consider changing my PSU then thumb.gif

What is the worst can happen anyway, my computer shut down on me during a really intense moment in BF3 rolleyes.gif

Thank you all for your input.
post #10 of 12
i dont think that PSU is very good. or at least, the original GX series sucked
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